diff --git a/.github/workflows/test-bookdown.yml b/.github/workflows/test-bookdown.yml
index 9320d6b..8796359 100644
--- a/.github/workflows/test-bookdown.yml
+++ b/.github/workflows/test-bookdown.yml
@@ -13,7 +13,7 @@ jobs:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
 
       - uses: r-lib/actions/setup-r@v2
         with: